There is a book out there called “The Knowledge”, that is basically a how-to book for bring a society from the stone-age to roughly mid-1940’s-level technology, within a single generation. I highly recommend it for anyone concerned about the aftermath of an EMP attack.
For that matter, the information it contains is handy for building, repairing, or designing things, even without an EMP. And it’s kind of a fun read.
That sounds like a very interesting book, on a lot of levels. Thanks for posting!